Abstract: The subject of the invention is a rotary control knob (2) of a control panel in particular for a ventilation, heating and/or air-conditioning installation of a vehicle cabin. This control knob (2) consists of a cylinder (3) provided at one of its ends with a gripping member (6) intended for the user, and equipped with at least one boss (15) for limiting its rotational travel between its end positions. Said boss (15) is formed at the base of the gripping member (6) and is covered at least partially by a flexible mass (19) emanating from a flexible covering (18) of the gripping member (6).

Abstract: This invention relates to a light guide (1) for a control knob, particularly an instrument panel of a vehicle. The knob is fitted with an index (3) free to move in rotation about an axis (A). The light guide (1) will be inserted between a light source (2) and the index (3) and comprises at least one entry surface (4) for light rays emitted by the light source (2), a first exit surface (6) of light rays towards the index (3) and side faces (5) inserted between the entry surface (4) and the first exit surface (6). The light guide comprises first optical means (4, 8, 15, 16) to orient received light rays approximately parallel to the rotation axis (A) of the index (3), and second optical means (5, 22, 14, 17, 18, 19, 20) to focus the previously reoriented light rays towards at least the first exit surface (6).

Abstract: This invention relates to a light guide (1) for a control knob, particularly an instrument panel of a vehicle. The knob is fitted with an index (3) free to move in rotation about an axis (A). The light guide (1) will be inserted between a light source (2) and the index (3) and comprises at least one entry surface (4) for light rays emitted by the light source (2), a first exit surface (6) of light rays towards the index (3) and side faces (5) inserted between the entry surface (4) and the first exit surface (6). The light guide comprises first optical means (4, 8, 15, 16) to orient received light rays approximately parallel to the rotation axis (A) of the index (3), and second optical means (5, 22, 14, 17, 18, 19, 20) to focus the previously reoriented light rays towards at least the first exit surface (6).

Abstract: This invention relates to rotary knob 1, in particular for a control panel for a ventilation, heating and/or air conditioning installation, comprising a gripping area 2, and an activation area 9, characterized in that it has at least two shoulders 5, 6, each shoulder comprising at least one indexing means 7 for blocking the said knob in rotation, the shoulders 5, 6 supporting a different number of indexing means 7. It is applicable to ventilation, heating and/or air conditioning installations inside a motor vehicle.

Abstract: The subject of the invention is a rotary control knob (2) of a control panel in particular for a ventilation, heating and/or air-conditioning installation of a vehicle cabin. This control knob (2) consists of a cylinder (3) provided at one of its ends with a gripping member (6) intended for the user, and equipped with at least one boss (15) for limiting its rotational travel between its end positions. Said boss (15) is formed at the base of the gripping member (6) and is covered at least partially by a flexible mass (19) emanating from a flexible covering (18) of the gripping member (6).